PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



805 



Nittari^ ^ & Mysore? ^ Mysore? 

 French i 



^& Mysore? ") 



P 1' 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Do. Fjs 



Do. Fo, 



Do. Fji 



Do. F„ 



Do. Fje 



Do. Fj, 



Do. F„ 



Date of 

 oviposition 



26th 

 1917. 



12th April 

 1918. 



22nd May 

 1918. 



28th June 

 1918. 



4th August 

 1918. 



7th Septe 

 ber 1918. 



14th Octo- 

 ber 1918. 



23rd Decem- 

 ber 1918. 



Date of 

 hatching 



1st March 

 1918. 



23rd 

 1918. 



30th 

 1918. 



April 



May 



July 



10th August 

 1918. 



15th Septem- 

 ber 1918. 



24th Octo- 

 ber 1918. 



Dal e of 

 mounting 



1st April 



1918. 



22nd 

 1918. 



17th 

 1918. 



24th 

 1918. 



May 

 June 

 July 



28th August 

 1918. 



3rd Octo- 

 ber 1918. 



25th Novem- 

 ber 1918. 



Weight of mature 

 worms and raw 

 cocoons in 10 g'u, 



8 mature , 12 raw. 



Grey eggs were 

 reared in this 

 generation. 



7 mature ; 12 raw. 

 6 mature ; 11 raw. 

 6 mature; 10 raw. 



6 mature ; 8 raw. 



7 mature ; 12 raw. 

 7 mature ; 12 raw. 



The race is being 

 continued. 



The Pasteur system of examination is the best for elimination of 

 pebrine in univoltine, bivoltine and multivoltine races in India. The 

 system is more simple, more economical, and less laborious than all the 

 existing modified methods of Pasteur. For easy and quick detection 

 of pebrine corpuscles from the juice of mother-moths the following 

 precautions should be adopted : — * 



(1) Place 50 or 60 mother-moths on a paper after separating the 



pairs and shake the paper by holding one of its ends. The 

 moths will excrete the contents of the colon so that there 

 will not be much exudation of the colon at the time of crushin<r 

 them for microscopical examination. 



(2) Keep the mother-moths isolated in paper bags on the first 



night after oviposition at about 80°-95°F. After i or 5 

 days dry them for three or four hours at about 160°-180°F. 

 The number of the bag containing a moth should correspond 

 with the number of the laying oviposited by it so that the 

 eggs laid by each moth can be ascertained. This process 

 will help the multiplication of pebrine corpuscles and dry up 

 the contents of the colon. 



* In Japan multivoltine moths are examined with or without dr_ying. In some 

 countries they are examined without drying. 



